RMC has a continuous steel body and higher abrasion resistance, while EMT is lighter and easier to bend and connect. RMC is better for dusty or rocky areas and where cables need extra protection. Choose size based on current load, run length, and project standards.
Internal installations commonly use half-inch, three-quarter-inch, and one-inch sizes, with larger sizes for bigger projects. Selection depends on cable count, current capacity, and maintenance access. Matkel carries certified sizes for indoor and outdoor work, including coatings suited to coastal environments.
Plain steel can corrode in humidity if untreated, so zinc-coated or rust-protected RMC is recommended for Jeddah, Khobar, or Dammam projects. Check coating thickness, weld quality, and external protection. Consult the site engineer before selecting color or finish for longer service life.
Verify wall thickness, inner and outer diameter, steel grade, coating type, and factory compliance certificate. Major government projects usually require quality documents, approved Saudi standards, and available fittings such as boxes and connectors. Request samples before final project approval.
Price varies by size, wall thickness, coating type, and delivery cost. Large projects can order bulk quantities with trade discounts, but confirm the invoice, tax, and delivery time before approval. For safe installation, use compatible fittings and inspect every connection before closing walls or floors.